SU514320A1 - The converter of an angle of rotation of a shaft to an electric signal - Google Patents

Description

The PS is invented in relation to the transformation of the information form 1Fest1P1 information, in part to 11reob;; UG type (; l is the code, the angle is -Haup5i / i L-iiiie or "ugo; -time, la / ropbi.x with sensors of initial information in. of the joint venture of the 1st axis of the axes of the wrap, traficformers (SCWT).

Characteristics -. ek-romkhhapichssky rsobrazov: 1te,; and, ().) iUJie task of converting noiiopora sa.ia into a digit code. -iac about the task 11 of converting the corner of the shaft to the code io. remove. m with SCWT installed on the shaft. In these s.pucha x ia practice, the conversion is performed with 1 omopi of the tracking system, at the output of the iOM to the shaft of which the electromechanical system was installed)) angle-code. However, (the mechanics of 1LZ.Yuv are known and transformed.xx1 leads to and, one of them, the character of the carats iH3Koii reliably. Besides, he is known for converting; the angle of the hole in the digital chaud, which includes SCRT sensor, the outputs of which through the transducer of the range switch are connected to the input 1 are transformed; 1 "into the output-code with the comparison circuit, the circuit is selected and installed;; Hx is the sinus and braid of the windings of SCVT, su.1 is a global amplifier, which is 1y through the switch. T d a 1 azoiov to einus and braid

2

the windings of SCWT-da, and 1dkl10chs 1 to 0 0rnogo nanr the same P1 nreobrazovatel); t; s-n1 e - code, circuit ier: .1 och, 1, eat dianazo 015, 4 irovatravl so OB ix .Tbco3, admin: HioL uui raboto the whole arrangement, the scheme of the forms is 1, a 1 correction code 1 Ts 1 of a 1 adder. In this vcTpofiCTBC С11ача.1а -la you move on to translate, 1 ”(a code that contains a code, and then rotates the rotor of the SCRT sensor, and then fop ipryts r The values of the correction code, which is summed with the code formed by the converter “nanj-code”, as a result, the summary code is 11 times the value of the angle of rotation of the rotor of the SCRT sensor with an accuracy corresponding to 1yup. 12-13 binary digits. , character 1zuete limi pi 1 point ostiyo and annaraturno complexity 1) n) 11 of its implementation І1п, especially 1 w when new P1 of the size, as it causes the need to form and xpaiiirib sick O1 p5-: the value of the correct code.

The target; the B product, you increase, the 1 corner of the turn of the clock is converted in the elec t1 signal and the extension of the ycTpoiiCTBa scheme. In the described converter, this is available in order. that a generator was added to neiO 1dal for 1p of output, a time interval interpolation unit and a form factor do 1Ulix; 1nogo signal, the output of which is connected to summatf, and the input is ico to the second output of u11p1; Comparison unit, the other output of which is connected to the output of the si11uss generator) at the remote voltage, is supplied through the measured time block; 1a is connected to the adder.

Gochiost) the transformation of the installed device is theoretically unlimited, since iipii is an absolute parenthetical functional 3aBiCHMocieii functional 1a from the angle of rotation of the rotor (in a time) and from the figure, and it is not like one of them, and it is not like one of them, and it is not enough, and it is not enough, and it is on the way, and it is not enough. for example, the “Bpe.Meinioii” interval code is a code that does not have its corresponding size, it has prebrebges. about sin.

iia fng. 1 shows the block-modem of the described weather: 1; in fig. 2 n 3 - temporary dnagra.mk

Converter soda) ct in succession vk. .ta b and adder 7. To output.m b; yuka 2, the isolation of the envelopes voltage of the sinus p KocHHycHoii windings is connected to a batch of an unbalanced shade 8, the outputs of which are connected to the switch of the ranges 3, to the comparison unit 4n through the additional driver .chppte.this from 9 --- to the adder 7.

The voltage from the sinus and cosine windings 1 comes from a block 2 of the voltage extraction .nh, which is a yuccium of self) 1 two phases of the ignition. The output nanr 1 / keni of the block 2, pronoronal to the sine p koipuyeu of the rotation angle of the rotor of SLE I), through the switch of the ranges 3 is fed to the input of the comparator unit 4. The switch of dunazans 3 impersonates the switching key of the cI or coennycHoii in the SCR of the unit in the switchboard of the switchgear or by koennycHoii in the unit by means of the key switch in the control unit of the unit in the unit 3 of the rotor of the unit. on BTOpoii, the input of which is fed to a reference sinusoidal voltage from the output of generator 0.

The oscillation frequency of the ennusoidal voltage generator 5 is determined by the permissible conversion error and maximally possible frequency of change in the instrument area (L, VT 1. For example, if the frequency of the curvature exceeds 0.5 n, it is necessary to form a signal proportional to the angular position of the rotor of the SCRT 1 with i) uni 500 more than 0.1%, the frequency of the reference voltage generator is determined by the expression

/ on-Jp -100,.; 500y.

The maximum frequency of the reference-voltage generator is limited by the current and frequency of the comparison of other nodes connected to the reference-voltage generator. At the inputs of b. 1k, comparison 4, two sinusoidal, but in the form of a cnagal, act:

CwcSina or Lmax; sin (90 -2)

iostunyunyy with the switch of dianazones, n L. mai;.:. sinto / - the CG generator of sinusoidal vibration 5, where a is the angular position of the rotor SKVG 1

(geometrical angle);

ij) i - e; 1ktrpches; ii1 the angle of the reference sinusoidal signal.

As a result of comparing the stresses of two different functional functions from rar arguments (a and s1), a continuous crescent of impulses is formed at the output of the biased shock signal, the time of the delay of each pulse from the origin, which is the transition point of the support pair through zero. the level in the region is positive, is the linear function of the argument a, i.e., from the angular position of the rotor of the ACSF 1 (see fng. 2).

As vpdno pz diagrams. Voltages (em. 2), is supremely identical to the moment of the end of the temporary P1 terminal formed on the input of the unit equal to 4, the chak as in each period of the sinusoidal sinusoidal iann. At the moment of the end of the time interval, it is necessary to equalize the moment of equality, in which the derivatives of the signals being compared have the same sign (on the FNG, 2 non-innative moments of the end of the time interval, changing the rotational angle of the rotor angle of SKVT 1, are marked by dots).

The control signal of the comparison unit 4 is generated by the control unit 8 along the eu1 palam of the sinus envelopes and KOCHnycnoJi windings (cf. fig. 3, a) and has the form shown in pas. 3 b. Such a signal is generated using a comparator made, for example, on a single-ended amplifier, the multi-variable inputs of which are supplied with the voltage of the envelopes CKBi 1. Due to the fact that, when the rotor of the SCVT 1 is fed, the echo-lines of the envelopes (“and 270 °) the steepness of the reference sine wave is sharply reduced. A large signal is possible; a large conversion is possible because of the continuous operation of the eigenvalue unit 4. To eliminate this error, the first unit, equal to the sinus Hj, is switched to cosine, and but since their extrema shifted by 90 °, which allows the switching by said excluding irotsessa converting portions unstable srabatyvapp the comparator 4.

FIG. 3 and the areas of the Lmcosa and Imsina envelopes, on which transformations are carried out, are shown with a line.

When converting the CbT1 no-sine envelope (see Fig. Over plots I, III, VI), the time interval, the normal angle o, and the rotation of the rotor of SCR 1 are obtained, and , V) the value of the time interval is attributed from the latter to the state of Velnchin (see Fig. 3c, d). The time interval from the output of Comparison Unit 4 as two impulses determining the MOMejrrbi of its beginning and end is sent to the measuring unit of time interval 6, which can be used, for example, time interval-voltage, or the interval code, the time interval measurement block b converts the temporal HHTepBHvT into an equivalent physical value of another kind (CODE or voltage), convenient for performing 1 subsequent summation and input to other devices with which 3a data will be associated 11 converter. To obtain a signal, iro113 rotsiopalno1 yr.iy rotate the SKY1 I rotor in the range from 0 to 3B, the output signal of the variable time variable 6 block with the constant values generated by the shaper doio.t.t.tiny signal 9 (c .vi fig. od). In sections I, HI, and iV transformations, the constant that is not available on adder 7 is equal to "O; in sections P and IV, its value

is equivalent to a; -90. and on section X, the corner and 270. As a result, at the output of the res.5mator 7, a signal (code or pattern) is generated, which transforms 1) P11 of the rotation angle of the rotor 1 in the range from 0 to 30 ° (see Fig. 3c).

Forms of y. T and and 3 about b and e and and

A shaft rotation angle converter in an electrical cninia.T, containing a 1P1 sensor, is a sine-cuspied transformer, connected to the selection input of the envelope voltage, the outputs of which are connected to the switch through the switch of the ranges, the inputs of which are connected to the outputs of the selection unit for example envelopes, and riepBbiii output to the range switch, n adder, which means that, in order to improve the reliability of the operation and to improve the design of the transformer, a syn generator is introduced into it The unit measures the time interval and the former shaper, the output of which is connected to the adder, and the input to the second output of the remote controller, the third output of which is connected to one of the inputs of the comparison unit, the other input of which is connected to the output of the sinusoidal generator, Comparison of the output of the comparator through the time interval measuring unit. The terminal is connected to the adder.